InvalidObjectException Class

The exception that is thrown when referencing an object that is no longer valid.

Namespace: Autodesk.Revit.Exceptions
Assembly: RevitAPI (in RevitAPI.dll) Version: (


public class InvalidObjectException : InvalidOperationException
Visual Basic
<SerializableAttribute> _
Public Class InvalidObjectException _
	Inherits InvalidOperationException
Visual C++
public ref class InvalidObjectException : public InvalidOperationException


The object may no longer exist for many reasons:
  • The object was explicitly deleted from the database.
  • A change to other database items caused the item to be automatically deleted from the database.
  • The object no longer exists as its creation was undone (by rolling a transaction back).

Inheritance Hierarchy

System Object
System Exception
Autodesk.Revit.Exceptions ApplicationException
Autodesk.Revit.Exceptions InvalidOperationException
Autodesk.Revit.Exceptions InvalidObjectException

See Also